探讨了反应温度、初始KOH浓度、浸出时间和碱矿比等因素对铌和钽的浸出率的影响。
The effects of leaching temperature, initial KOH concentration, leaching time and mass ratio of alkali to ore on the leaching rate of Nb and Ta were investigated.
西方公司打算扩大中国以外的稀土矿产量，但这其中储量较大的稀土矿比中国华南的稀土矿复杂的多，这些矿往往伴生着放射性的铀和钍，开采起来很复杂。
Companies want to expand production outside China, but most rare-earth deposits, unlike those in southern China, are accompanied by radioactive uranium and thorium that complicate mining.
上游是有毒的伯克利矿坑，一个比尤特的露天矿。它曾经被称为地球上最富有的矿山，因为这里的金、银和铜矿数量巨大。
Upstream is the poisonous Berkeley pit, an open-pit mine in Butte, which was once called the Richest Hill on Earth for the quantities of gold, silver and copper mined there.
而其中原因往往是因为对手采的矿和气比自己多。
Often the reason is that their enemy mined more resources than they did.
在这张专辑中——粗听比之前的更粗矿——他们把这点发挥到了极致。
On Transference – initially rougher-sounding than previous albums – they carry this to new extremes.
近几年，没有哪家矿商比力拓更积极地致力于同客户敲定长期价格。
In recent years there had been no miner more committed to fixing long-term prices with customers than Rio.
这比记录中最危险的2002年，造成的6995人遇难的矿难下降了很多。
That was down from 6,995 deaths in 2002, the most dangerous year on record.
1940年，美国犹太教拉比兼考古学家尼尔森·格鲁伊克(NelsonGlueck)公然宣称他所发现的由所罗门王控制的以东矿就在此地。
It also happened to be where the American rabbi and archaeologist Nelson Glueck unabashedly proclaimed in 1940 that he had discovered the Edomite mines controlled by King Solomon.
现在探明的石油及气矿，譬如海底储备，其回报率介于16比1至20比1之间。
Current oil and gas finds, such as undersea reserves, may offer a return between 16-to-1 and 20-to-1.
挖色矿对提高挖矿技能比挖普通矿有更大帮助。
Mining colored ore seems to improve skill a little faster than normal iron ore.
影响露天矿开采境界的因素很多，其中一个最重要的因素就是经济合理剥采比。
There are many complications that influent open-pit limit and the economic stripping ratio is the most important one.
通过几个露天矿采场边坡的动态应力比评价，说明了该方法的内容与应用过程，揭示了其本质与优点。
The evaluation of some open pit slopes' explains the content and application progress of this method, and delineates its essence and advantage.
影响沥青混合料水稳定性的因素有沥青、矿料的性质、混合料的配合比、施工条件、环境因素等。
Some factors, included asphalt, aggregate, asphalt mixture performance, construction condition and environment, have effect on moisture stability of asphalt mixture.
对露天矿万吨矿石开沟比的含义，及如何利用这一指标对采场生产能力进行检验，作了简要的论述。
The significance of ditching ratio per ten thousand ton ores for open pits is given, and how to use this index to test productive capacity of stope is briefly discussed.
对于添加石灰石的SBS I - D沥青胶浆，其针入度指数同样表现一最佳矿粉结合料比，该比值高于其他胶浆的最佳矿粉结合料比。
For the limestone and SBS I-D asphalt mastic, the penetration index values also showed an optimum dust to binder ratio but with higher values than other mastics.
赞比亚谦比西铜矿是赞比亚—刚果(金)铜矿带上的一个典型铜矿床，矿体赋存于下罗恩组的含矿建造中。
Chambishi mine is one of typical copper deposits in Zambia-DRC copperbelt, and its orebody lies in lower Roan Group.
由于1.09版本中经济的削弱，节约和开采泰矿变的比以前更加重要。
Because of the economy nerf in 1.09, managing and exploiting tiberium to it's fullest has become more important than ever.
然后，对确定配合比例的国产环氧沥青进行混合料目标配合比设计，确定了矿料的级配范围、混合料的最佳油石比以及高温固化温度、时间等参数。
Then, it makes target mixture proportion design to study on the aggregate gradation scope, optimum asphalt content of mixture, the temperature and time of curing.
据此计算了截止放矿时的矿岩比，为小官庄矿放矿提供了科学依据。
According to this cutoff grade, the paper has calculated the ratio of ore and rock while cutoff drawing that provide science foundation for the drawing of Xiaoguanzhuang iron mine.
我国观行的沥青混合料配合比设计方法采用马歇尔设计方法，以马歇尔试件的空隙率、矿料间隙率、沥青饱和度等作为控制指标。
The present asphalt mixtures design method is Marshall method, which is based on air voids, voids of mineral aggregate and voids of mineral aggregate that are filled with asphalt etc.
在国内外沥青稳定碎石研究的基础上，给出了功能层混合料矿料级配组成的设计和评价方法及功能层混合料配合比设计方法。
Besides, based on the research at home and abroad, we proposed design and evaluation method of asphalt treated base aggregate gradation and mixture design method of asphalt treated mixture.
结果：高胆固醇的骨头的脱矿速率比正常骨的快，再矿化速率比正常骨慢。
Results: The demineralization rate of the bones intussuscepted with cholesterol are faster than that of normal bones, the mineralization rate of the former is slower than that of the later.
中老年女性骨矿含量与体重、瘦体重呈正相关，与腰臀比呈负相关。
Bone mineral content in elderly women was positively correlated with body weight, lean body mass while negatively related to waist-hip ratio.
上向孔侧向崩矿爆炸应力波对采场项板的破坏比水平落矿爆炸应力波对采场顶板的破坏要小，从而使撬毛工作量减少了58.3％。
The destroy of the roof produced by stress wave of upward hole side blasting is less than that of the level hole blasting. The work of prizing flexible rock decreased by 58. 3%.
针对混合料配合比设计中矿料组成设计常用方法的局限性，提出一种新的数解迭代法。
Aiming at limitation of common design method for mineral aggregate composition in mix proportioning, the paper advances a new numeral solution-relaxation for proportion.
进行了环氧沥青混合料目标配合比设计，确定了矿料的级配范围、混合料的最佳油石比以及高温固化温度、时间等参数。
Then, it makes target mixture proportion design to study on the aggregate scope, optimum asphalt content of mixture, the temperature and time of curing.
本发明公开一种可用低铝硅比的矿料，如高岭土，粘土等生产氢氧化铝的方法。
The present invention discloses a process for producing aluminium hydroxide from low aluminium-silicon ratio mineral materials such as kaolin and clay.
试验表明，聚能管能够比原先爆破方法提高块率5%，可为矿取得良好的经济效益；
It is indicated that the binding energy tube could enhance the block rate 5% compared to the original blast method, obtaining a better economic efficiency for the mine;
本发明远红外多功能纤维材料，包括矿药型无机成分和甲壳低聚糖，甲壳低聚糖含量按无机成分重量百分比：0.5-1％。
The multifunctional far infrared material consists of mineral medicinal inorganic component and crust oligose in the amount of 0.5-1 wt% of the inorganic component.
研究发现，在相同的放矿条件下，平面放矿方案比立面放矿方案更加合理。
The research found out that under the same ore-drawing conditions, the former was more reasonable than the latter.
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